1. Low-grade non-Hodgkin's lymphoma or plasma cell neoplasm that has progressed during multiagent therapy including follicular lymphoma, Marginal zone (or MALT) lymphoma, lymphoplasmacytic lymphoma / Waldenstrom's macroglobulinemia, Hairy cell leukemia, Small lymphocytic lymphoma (SLL) or chronic lymphocytic leukemia (CLL), Prolymphocytic leukemia, Multiple myeloma and Plasma cell leukemia